I've purchased my pet meds from the BestValuePetSupplies website for years due to low cost and no prescription needed. Copied this post from slick deals' pet forum:

FYI I got the following Email from BVPS

Yesterday we became aware that our online domain name bestvaluepetsupplies.comhas been stolen from us. We are looking into why and how this has occurred.We have been advised this process can take a long time, so we have decided to create a new online domain name so we can continue to offer your pet's preventative medications at great prices, making pet ownership more affordable.

Our new online address is www.bestvaluepetsupplies.biz . Type or paste this into the address bar of your internet browser and click ENTER and you will go to our new site. You can also click on the address above , remember to bookmark our site so it is easier for you to find.

Our new contact email address is info@bestvaluepetsupplies.biz

You can still login to your account entering the same login details you have been using. Records of any past orders are still available in your account history. The only thing that has changed is our online domain name.

We would like to offer you an even better deal when you purchase your pet preventive medications, the following coupon codes can be used for any order you make for the rest of 2016 and for the whole of 2017.

• To receive $5.00 off any order made for the rest of 2016 use the Coupon Code bestvalu16. This is entered in your SHOPPING CART.
  
• To receive $5.00 off any order made during 2017 use the Coupon Code bestvalu17
  

We apologize if you have received this email and are not interested in our new online site or the coupon codes we offer.